Clio turbo 197

Well had the car back for 2 days now and it's rapid but it's started to overheat after about half an hour worth of driving it flys right up it's ok when going down a motorway I guess that's because it's getting plenty of air. Coolant boiled over twice any body got any ideas
 
Well had the car back for 2 days now and it's rapid but it's started to overheat after about half an hour worth of driving it flys right up it's ok when going down a motorway I guess that's because it's getting plenty of air. Coolant boiled over twice any body got any ideas

is the cooling fan cutting in?
 
How about an alloy radiator, they are a lot more effective than steel ones also has it got an oil cooler, that might help.
 
Could be something simple like the fuse for the fan, particularly if it's having to work hard as its hotter in there.
 
Ye it was the fan not turning on at all sorted for now need to buy a radiator fan resister pack 2 pin should be ok then as it's only running half power